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Fractal Holey Metal Microlenses with Significantly Suppressed Side Lobes and High‐Order Diffractions in Focusing
Author(s) -
Liu Yan Jun,
Liu Hong,
Leong Eunice Sok Ping,
Chum Chan Choy,
Teng Jing Hua
Publication year - 2014
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201300447
Subject(s) - microlens , materials science , fractal , optics , planar , optoelectronics , lens (geology) , physics , computer science , mathematical analysis , computer graphics (images) , mathematics
A fractal holey metal microlens based on finite areas of two‐dimensional arrays of circular nanoholes is reported. Both experimental and simulation results confirm that the fractal holey metal microlens can significantly suppress both the side lobes and high‐order diffractions. The ultra‐thin, planar, and compact design of the fractal holey metal microlenses with excellent focusing performance will benefit many applications such as bioimaging, optical trapping, and integrated optics.